/Engine/Source/Runtime/SlateCore/Public/Widgets/SWidget.h
Called when a touchpad touch is ended (finger lifted)
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnTouchEnded ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & InTouchEvent )